The place is very spacious as for Bangkok standard - it has quite big living room, where 2 more people can sleep. The building is quite new, it has very nice pool and modern gym accessible.
The location is nice, but it is 15 mins walk from the airlink station and the road is not prepared for pedestriants at all. The taxi to the airport costs around 130 THB without traffic and not using toll road, so it is quite close and convenient.
The only problem is A/C which is present but works best in bedroom only.
Overall - nice place for longer stays, especially when you have your own transport. Quite nice as few days sleepover between flights etc. as well.